applied anatomy of elbow joint

It is the point of articulation of three bones: the humerus of the arm and the radius and the ulna of the forearm. http://www.anatomyzone.com3D anatomy tutorial on the features of the elbow joint using the Zygote Body Browser (http://www.zygotebody.com). These ligaments help to maintain the articular surfaces in contact with each other. The elbow joint helps the hand to approach or move away from the body, whatever the arm position resulting from shoulder movement. / Morrey, B. F. T1 - Applied anatomy and biomechanics of the elbow joint. It prevents downwards movement of the radius. On ulna: 7, coronoid process; 8, radial notch. Upper: 1, anterior part; 2, middle part; 3, posterior part; 4, ligament of Cooper. FIG.330– Left elbow-joint, showing posterior and radial collateral ligaments.The Anterior Ligament (Fig. The articular facet of the radius, with which the proximal part of the humeroradial joint articulates, is at the top of the head of the radius. Dive into the research topics of 'Applied anatomy and biomechanics of the elbow joint.'. 315) and the oblique cord join the two bones of the forearm to prevent any longitudinal movement and assist as a fulcrum in pronation–supination (i.e. • The oblique cord extends inferolaterally from the lateral border of the tuberosity of the ulna to the radius, just below its tuberosity (see Putz, Fig. TY - JOUR T1 - Applied anatomy and biomechanics of the elbow joint. The other part of the joint is formed by the olecranon, with its trochlear notch and its olecranon (proximal) and coronoid (distal) processes. The ends of the bones are covered with cartilage. The main action of the humeroulnar joint is flexion and extension of the elbow. It includes two articulations : (a) humero-ulnar articulation, between the trochlea of the humerus and trochlear notch of the ulna, and (b) humero-radial articulation, between the capitulum of the humerus and the head of radius. On humerus: 1, trochlea; 2, coronoid fossa; 3, medial epicondyl; 4, capitulum; 5, radial fossa; 6, capitulotrochlear sulcus. This knowledge may, it is hoped, be translated into a broader understanding of the scientific basis of the management of elbow problems. The capsule is reinforced by strong lateral ligaments (Fig. Humero-ulnar articulation is between trochlea of humerus and trochlear notch of ulna. It plays an important role in pronation–supination (see Gosling et al, Fig. The three joints lie within the same lax joint capsule, which is spanned by muscular fibres of the brachialis, triceps and anconeus muscles. Proximal to the capitulum lies the radial fossa and beside it a capitulotrochlear sulcus (between capitulum and trochlea). ONLINE Applied anatomy of the sacroiliac joint 41. Clinical examination of the sacroiliac joint 42. • The upper radioulnar joint is a trochoid (cone-shaped) joint. We applied 160 N of axial force during cyclic and functional range of forearm rotation (40 o pronation/40 o supination), and force, contact pressure, and contact area through the elbow joint were measured simultaneously. Together they form a unique fingerprint. 307). It is attached to the lower end of humerus in a continuous line, which excludes the two epicondyles but include three fossae. N2 - A clear understanding of the unique anatomic features of the elbow joint aids in a more full appreciation of the biomechanical aspects of this joint. The main factors involved in malformations of the limbs (O'Rahilly and Müller, 1996) are dominant and recessive genes, chromosomal abnormalities, drugs (e.g., thalidomide), and (in a few instances) amniotic bands. 3.93). First, the large spherical head of the humerus articulates against the small shallow glenoid fossa of the scapula (only 25–30% of the humeral head is covered by the glenoid surface). The periarticular arterial anastomosis of the elbow consists of several arteries that supply the elbow joint and its supporting structures. It consists of three ‘joints’, which lie within one joint capsule and together have two separate functions. In its anterior course, the axis of movement is horizontal: therefore, in flexion, the forearm lies exactly in front of the upper arm. Fig 6 The range of flexion–extension movement. Extension is mainly limited by the olecranon abutting against the posterior aspect of the humerus in the olecranon fossa (Fig. Fig 1 Humeroulnar and humeroradial joints (anterior view). Have you been making any of these common anatomy learning mistakes? This unique osseous structure provides … LIGAMENTS OF ELBOW JOINT Capsular ligament Ulnar collateral ligament or Medial ligament Radial collateral ligament or Lateral ligament 10. And thin fibrous layer covering the anterior surface of head of radius fibrous layer covering anterior! 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